misc: Updated the RELEASE-NOTES and version number

Updated the RELEASE-NOTES.md and version number for the v20.1.0.1
hot-fix.

Change-Id: I51f7ba6f1178a2d8e80488ed2184b8735c2234a2
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/37116
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Tested-by: kokoro <noreply+kokoro@google.com>

RELEASE-NOTES.md

@@ -1,3 +1,9 @@
+# Version 20.1.0.1
+
+**[HOTFIX]** A patch was applied to fix the Garnet network interface stats.
+Previously, the flit source delay was computed using both tick and cycles.
+This bug affected the overall behavior of the Garnet Network Model.
+
 # Version 20.1.0.0
 
 Thank you to everyone that made this release possible!

src/Doxyfile

@@ -31,7 +31,7 @@ PROJECT_NAME           = gem5
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = v20.1.0.0
+PROJECT_NUMBER         = v20.1.0.1
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put. 

src/base/version.cc

@@ -29,4 +29,4 @@
 /**
  * @ingroup api_base_utils
  */
-const char *gem5Version = "20.1.0.0";
+const char *gem5Version = "20.1.0.1";